Plot: By day, the 800-year-old temple known as Angkor Wat is one of Cambodia's most treasured national landmarks and tourist attractions but, by night, could it be ground zero for the region's angriest spirits? That's certainly the belief of many visitors to Angkor, a sprawling forty square mile complex of stone palaces, shrines, and ruins. In the center of this compound sits Angkor Wat, a 12th century structure originally designed as a Hindu temple, which now holds the distinction of being the largest religious building in the world